Why Does My Roof Leak in the Winter?
What Is an Ice Dam?
An ice dam forms when snow on your roof melts, flows down, and refreezes along the roof’s edge. This creates a “dam” of ice that prevents melting snow from draining properly. Water then backs up under shingles and can leak into your home.
Ice dams are especially common in Cincinnati due to fluctuating winter temperatures — freezing nights followed by daytime thaws.
Why Ice Dams Are Dangerous
Ice dams aren’t just an eyesore. They can cause:
Roof leaks and water stains on ceilings
Damage to shingles, decking, and underlayment
Mold and mildew inside walls and attics
Gutter damage and ice buildup near walkways
The longer an ice dam sits, the more damage it can cause.
What Causes Ice Dams?
Ice dams usually result from a combination of issues:
Poor attic insulation allowing heat to escape
Inadequate ventilation trapping warm air
Clogged or damaged gutters
Heavy snowfall followed by temperature swings
A professional roof inspection can pinpoint exactly what’s causing the problem on your home.
How to Prevent Ice Dams
The best defense against ice dams is proper roof and attic performance. Prevention methods include:
Improving attic insulation
Upgrading roof ventilation
Sealing air leaks from living spaces
Installing ice & water shield during roof replacement
Keeping gutters clean and flowing
Every home is different — which is why an inspection matters.
Free Ice Dam Roof Inspections in Cincinnati
If you’re seeing icicles, water stains, or ice buildup on your roof, don’t wait for damage to spread.
C. H. I. Roofing provides FREE roof inspections and estimates for homeowners throughout Cincinnati and surrounding areas.
Call today: (513) 731-7663
Local & trusted roofing professionals
Honest recommendations
No-pressure estimates
Protect your roof. Protect your home. Let C. H. I. Roofing help you stay ahead of winter damage.